TABLES 



103 



CODE TABLE 4 



Symbol d<\. — Trve direction, in lO's of degrees, FROM which wind is blowing (00-36) 

 Symbol d„dw. — Direction, in lO's of degrees, FROM which waves are coming 



Note. — In case the true wind speed exceeds 99 knots, 50 will be added to "dd" and only 

 the wind speed in excess of 100 knots will be coded. For example, if the direction = 163^ 

 and spped = 121 knots, the wind will be coded as "6621" (dd = 16-|-50; ff=121 — 100). 



CODE TABLE 5 



Symbol VV. — \'isibilily 



1. In case the observed visibility is between two 

 of the distances given in the table, the code figure 

 for the lesser distance will be repoited, e. g., when 

 the visibility is between 50 and 200 yards, code the 

 visibility as 91. 



664508 O ■ 62 - 8 



